Private contractors are a part of this war in unprecedented numbers, but we don't know that much about the people doing these jobs — why they chose to come to Iraq, and what they're seeing that we can't.

The private security guys (from a company called Custer Battles) who guard Baghdad International Airport usually get along fine with the U.S. military personnel stationed there—except when Nancy happened to be taping, and a huge fight broke out. (7 minutes) Business • Iraq • Military • Travel